From 6c32ea184941d292cd8f0eb898e6cc90120ada40 Mon Sep 17 00:00:00 2001 From: Hongxu Jia Date: Mon, 5 Nov 2018 16:03:35 +0800 Subject: ghostscript: fix CVE-2018-17961 Artifex Ghostscript 9.25 and earlier allows attackers to bypass a sandbox protection mechanism via vectors involving errorhandler setup. NOTE: this issue exists because of an incomplete fix for CVE-2018-17183. Signed-off-by: Hongxu Jia Signed-off-by: Richard Purdie --- ...-699938-.loadfontloop-must-be-an-operator.patch | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 meta/recipes-extended/ghostscript/files/0005-Bug-699938-.loadfontloop-must-be-an-operator.patch (limited to 'meta/recipes-extended/ghostscript/files/0005-Bug-699938-.loadfontloop-must-be-an-operator.patch') diff --git a/meta/recipes-extended/ghostscript/files/0005-Bug-699938-.loadfontloop-must-be-an-operator.patch b/meta/recipes-extended/ghostscript/files/0005-Bug-699938-.loadfontloop-must-be-an-operator.patch new file mode 100644 index 0000000000..4924b3cac6 --- /dev/null +++ b/meta/recipes-extended/ghostscript/files/0005-Bug-699938-.loadfontloop-must-be-an-operator.patch @@ -0,0 +1,31 @@ +From f0a61679d28bc1561640403d92492e199bc1c0f3 Mon Sep 17 00:00:00 2001 +From: Chris Liddell +Date: Wed, 10 Oct 2018 23:25:51 +0100 +Subject: [PATCH 5/5] Bug 699938: .loadfontloop must be an operator + +In the fix for Bug 699816, I omitted to make .loadfontloop into an operator, to +better hide .forceundef and .putgstringcopy. + +CVE: CVE-2018-17961 +Upstream-Status: Backport [git://git.ghostscript.com/ghostpdl.git] +Signed-off-by: Hongxu Jia +--- + Resource/Init/gs_fonts.ps | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/Resource/Init/gs_fonts.ps b/Resource/Init/gs_fonts.ps +index 89c3ab7..72feff2 100644 +--- a/Resource/Init/gs_fonts.ps ++++ b/Resource/Init/gs_fonts.ps +@@ -1148,7 +1148,7 @@ $error /SubstituteFont { } put + + } loop % end of loop + +- } bind executeonly def % must be bound and hidden for .putgstringcopy ++ } bind executeonly odef % must be bound and hidden for .putgstringcopy + + currentdict /.putgstringcopy .undef + +-- +2.7.4 + -- cgit 1.2.3-korg